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Dongles · Head to head

Nabu Casa Home Assistant Connect ZWA-2 vs Sonoff Dongle-PZG23

Full Smart Dongles comparison in 2026

Updated October 2026
Data from Amazon and official Nabu Casa and Sonoff sites.
2026 verdict
As a Z-Wave 800 controller for Home Assistant, the Nabu Casa Home Assistant Connect ZWA-2 wins by a nose over the Sonoff Dongle-PZG23, on a stronger +3.38dBi antenna against 2 dBi.
Nabu Casa Home Assistant Connect ZWA-2
Winner
Nabu Casa Home Assistant Connect ZWA-2
$79.00
Buy on Amazon USACheck price
Underneath, the two are very close: the same Silicon Labs EF32ZG23 chip, +20 dBm of transmit power, USB connection, Z-Wave only and a one-year warranty. The Sonoff Dongle-PZG23 answers as the more affordable stick, and it adds openHAB support in owners' hands and an extension cable in the box. The Nabu Casa Home Assistant Connect ZWA-2 is official Home Assistant hardware whose owners single out range above all. Pick the Nabu Casa Home Assistant Connect ZWA-2 if hard-to-reach devices are the problem, and the Sonoff Dongle-PZG23 to spend less on the same chip.
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FeatureNabu Casa Home Assistant Connect ZWA-2Sonoff Dongle-PZG23Winner
Price$79.00$39.90Sonoff Dongle-PZG23
Antenna Gain+3.38dBi+2dBiNabu Casa Home Assistant Connect ZWA-2
Rating4.64.6Tie
Warranty1 year1 yearTie
PowerUSBUSBTie
ConnectivityUSBUSBTie
Zigbee RouterNONOTie
Z-Wave Chip ModelEFR32ZG23EFR32ZG23Tie
Z-Wave ControllerYESYESTie
Thread Border RouterNONOTie
Matter BridgeNONOTie
Transmit Power+20dBm+20dBmTie

What the differences mean

Antenna

Same chip, same +20 dBm transmit power, but the Nabu Casa Home Assistant Connect ZWA-2 carries a +3.38dBi antenna against 2 dBi on the Sonoff Dongle-PZG23. It is the one hardware difference, and range is exactly what Nabu Casa owners praise most.

Cost

The Sonoff Dongle-PZG23 is the more affordable stick for the same EF32ZG23 Z-Wave 800 radio.

Software

The Nabu Casa Home Assistant Connect ZWA-2 is built around Home Assistant, which offers to set it up when it is plugged in. Owners run the Sonoff Dongle-PZG23 with Home Assistant and with openHAB.

Which one to buy if

What owners say

Owners of the Nabu Casa Home Assistant Connect ZWA-2 and the Sonoff Dongle-PZG23 agree on plug-and-play setup in Home Assistant, stable networks and no dropped devices. Nabu Casa Home Assistant Connect ZWA-2 owners talk about range above anything else: most sensors now connect directly, and switches and contacts behind stucco, glass or a metal gate finally hold, including where another 800 stick and a PoE controller failed. They also like supporting the Home Assistant project. Sonoff Dongle-PZG23 owners stress being up in minutes with devices migrated from an old Vera hub, and praise the extension cable and the value. Complaints are thin on both sides: Nabu Casa owners mention the higher cost, Sonoff owners that it is too new to judge durability.

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Nabu Casa Home Assistant Connect ZWA-2
  • Sonoff Dongle-PZG23

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Frequently Asked Questions

Which is better: Nabu Casa Home Assistant Connect ZWA-2 or Sonoff Dongle-PZG23?

The Nabu Casa Home Assistant Connect ZWA-2, narrowly, for its stronger antenna and the range its owners praise. The Sonoff Dongle-PZG23 uses the same chip and transmit power and is the more affordable choice.

Do the Nabu Casa Home Assistant Connect ZWA-2 and the Sonoff Dongle-PZG23 use the same chip?

Yes. Both are Z-Wave Series 800 controllers on the Silicon Labs EF32ZG23 with +20 dBm of transmit power. The difference is the antenna, +3.38dBi on the Nabu Casa and 2 dBi on the Sonoff.

Do either of them support Zigbee or Thread?

No. The Nabu Casa Home Assistant Connect ZWA-2 and the Sonoff Dongle-PZG23 are both Z-Wave only; Zigbee and Thread need a separate radio.

Is it worth switching from a Sonoff Dongle-PZG23 to a Nabu Casa Home Assistant Connect ZWA-2?

Only if range is a problem. The two share the chip and transmit power, so if the Sonoff Dongle-PZG23 already reaches all your devices, the stronger antenna of the Nabu Casa Home Assistant Connect ZWA-2 adds little.

Who should buy the Nabu Casa Home Assistant Connect ZWA-2?

Home Assistant users with hard-to-reach Z-Wave devices who want official, fully local hardware.

Who should buy the Sonoff Dongle-PZG23?

Anyone who wants a Z-Wave 800 controller for Home Assistant or openHAB at a lower cost, with an extension cable included.

Full comparison table

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